Case studies on desertification / 
prepared by Unesco/UNEP/UNDP ; edited by J. A. Mabbutt and C. Floret 
 - Paris :  Unesco,  1980 
 - 279 p. : [8] folded leaves : maps (7 folded col.) 
 - Natural resources research ;  v. 18 .
 - United Nations Educational, Scientific and Cultural Organization.  Natural resources research ;  v. 18 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Desertification--Case studies
<br/><br/><label>LC Class. No.: </label>GB611  / C34